Keys of the Wizardby Spectral Associates(Manual and cassette with case)

A randomized fantasy adventure with RPG elements. All-text, with a parser.
Comes in a plastic bag with fold-out instruction sheet. The tape label
reads "Wizard's Keys". This was released for the TRS-80, the Dragon Data,
and something called the TDP-100.

The instructions say that A.J. Hobbs Jr, from Kansas, has the record high
score of 578, but that 622 is the maximum possible. Anyone top that?